0.002 N Sodium Thiosulfate VS

This article is compiled based on the United States Pharmacopeia (USP) – 2025 Edition

Issued and maintained by the United States Pharmacopeial Convention (USP)

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Na₂S₂O₃ · 5H2O             248.19

0.49 g in 1000 mL

Transfer 20.0 mL of 0.1 N sodium thiosulfate VS to a 1000-mL volumetric flask. Dilute with water to volume._{▲(USP 1-May-2019)}